Authorities in the city implemented a 24-hour curfew as Iraqi armed forces and tribesmen fought to regain Ramadi's eastern Sijariya neighborhood, which the extremist group said it captured Friday.
Iraqi Prime Minister Haider al-Abadi has ordered more aerial support and weapons for both soldiers and Sunni militiamen battling the Islamic State group in Anbar province, where Ramadi is the provincial capital.
The US and Iraqi governments have been working to woo Sunni tribesmen to support the fight, proposing the establishment of a national guard program that will include arming and paying loyal tribesmen.
"Failure to equip these forces mean a less effective armed opposition to counter the Islamic State and its ability to gain the local support necessary to effectively control the areas it holds," the document said.
Meanwhile, Iraq's Supreme Judicial Council sentenced a former Sunni lawmaker to death for killing two Iraqi soldiers in 2013. The arrest of Ahmed al-Alwani last year stirred sectarian tensions as he had become a symbol for Sunni protests against Iraq's Shiite-led government. Al-Alwani can appeal the verdict.